http://www.kevinmd.com/blog/2013/04/doctors-avoid-killing-hurting-people-care.html

How can doctors avoid killing or hurting people in their care?
JANICE BOUGHTON

...We call the bad things that happen to patients "adverse events" and we try to eliminate all "preventable adverse events."

Some of these adverse events are really obviously our fault, and others are so preventable that we consider not preventing them to be unconscionable....